If you have deployed elasticsearch with a replication set, Kubernetes will enforce the number of desired pods automatically so you can simply kill the existing pod and a new one can be created.

kubectl delete pods example-pod-1812877987

If Elasticsearch is running directly on the VM:

systemctl restart elasticsearch

If Elasticsearch is running as a container on docker:

docker restart <container-id>

If Elasticsearch is running as a Kubernetes pod (deployed through a Kubernetes manifest):

• update the image tag in the manifest if needed, and do kubectl apply
• Or use kubectl replace or kubectl edit commands

On Kubernetes, ideally, you should use the declarative way of updating the manifests and then do a kubectl apply -f